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Title: Page curve under final state projection
Authors: Akal, Ibrahim
Kawamoto, Taishi
Ruan, Shan-Ming
Takayanagi, Tadashi  kyouindb  KAKEN_id  orcid https://orcid.org/0000-0001-7187-3130 (unconfirmed)
Wei, Zixia
Author's alias: 川本, 大志
髙柳, 匡
魏, 子夏
Keywords: Conformal field theory
Entanglement in field theory
Gauge-gravity dualities
Quantum Information
Gravitation, Cosmology & Astrophysics
Particles & Fields
Issue Date: Jun-2022
Publisher: American Physical Society (APS)
Journal title: Physical Review D
Volume: 105
Issue: 12
Thesis number: 126026
Abstract: The black hole singularity plays a crucial role in formulating Hawking's information paradox. The global spacetime analysis may be reconciled with unitarity by imposing a final state boundary condition on the spacelike singularity. Motivated by the final state proposal, we explore the effect of final state projection in two dimensional conformal field theories. We calculate the time evolution under postselection by employing the real part of pseudoentropy to estimate the amount of quantum entanglement averaged over histories between the initial and final states. We find that this quantity possesses a Page-curve-like behavior.
Rights: Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. Funded by SCOAP3.
URI: http://hdl.handle.net/2433/282019
DOI(Published Version): 10.1103/PhysRevD.105.126026
Appears in Collections:Journal Articles

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